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PIC16LCE625T-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB Flash | Microchip
PIC16LCE625T-04I/SS

PIC16LCE625T-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB Flash | Microchip

The Microchip Technology PIC16LCE625T-04I/SS is an 8-bit PIC microcontroller from the PIC16C family, featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 128 bytes of EEPROM data memory, housed in a 20-pin SSOP package. It operates at up to 4MHz with an external oscillator and offers 13 general-purpose I/O pins. The device supports a wide operating voltage range typical of the PIC16CE62X family and includes on-chip peripherals such as Brown-out Detect/Reset (BOR), Power-On Reset (POR), and a Watchdog Timer (WDT). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and I/O peripherals. The PIC architecture uses a Harvard RISC design with separate program and data buses, allowing instruction fetch and data access to occur in the same clock cycle. Within the broader semiconductor hierarchy, MCUs belong to logic ICs > microcontrollers > embedded processors > semiconductors. The 'CE' family designation indicates integrated EEPROM data memory, a feature that distinguishes PIC16CE62X from the parallel PIC16C62X series and makes the 'LCE' variant suitable for applications requiring non-volatile parameter storage without external EEPROM chips. Key features of the PIC16LCE625T-04I/SS include 35 instructions, a 14-bit instruction word, eight-level deep hardware stack, and direct/indirect/relative addressing modes. Peripherals comprise a Timer0 8-bit counter/timer with 8-bit prescaler, Timer1 16-bit counter/timer, capture/compare/PWM (CCP) module, and a 10-bit analog-to-digital converter (ADC). The 13 I/O pins can be individually configured for digital input or output, with several pins shared with analog and peripheral functions. Architecturally, the PIC16LCE625 employs CMOS technology with low-power operation suitable for battery-powered and industrial applications. The OTP program memory is programmed once and is non-erasable; for development cycles, windowed CERDIP variants provide UV-erase capability. The integrated 128-byte EEPROM is rated for 1 million erase/write cycles, providing reliable non-volatile storage for user calibration data, configuration parameters, or runtime logs. Typical applications include industrial control subsystems, sensor interface modules, automotive body electronics (pre-CAN era), appliance control boards, and low-power embedded sensor nodes. The combination of OTP program memory, integrated EEPROM, and 13 I/O makes this part suited for cost-sensitive high-volume products where firmware is finalized before mask programming. A key design consideration: the 'LCE' suffix indicates low-voltage (LC) operation with EEPROM data memory; the 'T' suffix denotes tape-and-reel packaging; the 'I' indicates the industrial temperature range (-40C to +85C); and the '/SS' suffix confirms the 20-pin SSOP package footprint. Designers should verify oscillator configuration bits for RC, XT, or HS modes based on system clock accuracy requirements. This page synthesizes distributor pricing from 2 verified sources, lists 6 pin-compatible Microchip alternatives from the same family, and provides design notes not duplicated from the manufacturer datasheet.

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PIC16LF1454-E/JQ - 8-Bit USB MCU, 14KB Flash, XLP | Microchip
PIC16LF1454-E/JQ

PIC16LF1454-E/JQ - 8-Bit USB MCU, 14KB Flash, XLP | Microchip

The Microchip Technology PIC16LF1454-E/JQ is an 8-bit PIC microcontroller with integrated USB 2.0 full-speed support, 14KB (8K x 14) of Flash program memory and 512 bytes of RAM, housed in a compact 16-pin UQFN (4x4 mm) exposed-pad package. The device operates from a wide 2.3V to 5.5V supply range, supports clock speeds up to 48 MHz, and is built around Microchip's enhanced mid-range PIC16 CPU core with a 14-bit instruction word. An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, program memory (Flash), data memory (RAM), peripherals, and I/O. Microcontrollers sit at the lowest tier of the embedded computing hierarchy: MCU -> embedded controller -> embedded system -> electronic product. The "LF" prefix in PIC16LF1454 denotes the Low-Frequency/Low-Power variant, paired here with Microchip's eXtreme Low Power (XLP) technology, which delivers nanoWatt sleep currents suitable for battery-powered and USB bus-powered designs. The PIC16 family occupies the mid-range 8-bit segment in Microchip's portfolio, between the baseline PIC10/12 and the high-performance PIC18/dsPIC families. Key features include a full-speed USB 2.0 peripheral with internal transceiver, 14KB self-programmable Flash, 256 bytes of EEPROM, a 10-bit ADC with up to 9 channels, two 8-bit timers plus one 16-bit timer, PWM/Signal Measurement peripherals, and a configurable Logic Cell. The integrated 48 MHz internal oscillator eliminates the need for an external crystal in many USB applications, reducing BOM cost and PCB area. The PIC16LF1454 architecture uses a 14-bit instruction width and a hardware stack, with a single-cycle hardware multiplier and interrupt controller supporting up to 18 sources. The integrated USB module includes a dedicated 3.3V regulator and pull-up resistor control, simplifying USB device hardware designs. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, low-power sensor nodes, consumer electronics accessories, and battery-powered data loggers. Its combination of integrated USB and nanoWatt XLP standby makes it well suited for USB bus-powered or coin-cell designs. Designers should note that the UQFN-16 (JQ) exposed pad must be soldered to a ground copper pour for proper thermal and electrical performance, and decoupling capacitors should be placed close to VDD. For USB applications, the 48 MHz accuracy of the internal oscillator meets the USB full-speed clock tolerance specification. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, supporting faster component selection and sourcing.

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PIC16LF1454-E/ML - 8-bit USB MCU, 14KB Flash, 16-QFN | Microchip
PIC16LF1454-E/ML

PIC16LF1454-E/ML - 8-bit USB MCU, 14KB Flash, 16-QFN | Microchip

The Microchip Technology PIC16LF1454-E/ML is an 8-bit PIC RISC USB microcontroller featuring 14KB of Flash program memory, 512 bytes of RAM, and an internal 48MHz oscillator, housed in a 16-pin QFN (4x4) package with an exposed thermal pad. It belongs to the PIC16F1454/55/59 family of low-pin-count USB microcontrollers and is part of Microchip's extreme low-power (XLP) portfolio. A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and configurable peripherals. The 8-bit class - exemplified by the PIC16 architecture - remains the workhorse of cost-sensitive embedded designs because of its deterministic instruction cycle, low sleep current, and decades of stable toolchain support. Microcontrollers sit at the bottom of the embedded hierarchy: MCU -> embedded processor -> semiconductor IC, and form the core of nearly every IoT, consumer, and industrial node. Key specifications include 14KB (8K x 14 words) of self-programmable Flash, 256 bytes of EEPROM data memory, 512 bytes of RAM, 12 I/O pins, and integrated full-speed USB 2.0 transceiver with on-chip pull-up resistors. The device operates from 2.0V to 3.6V, draws nanoWatt sleep currents below 1 uA in XLP modes, and includes a 10-bit ADC with up to 9 channels, two PWM modules, and configurable serial peripherals (I2C/SPI/EUSART). The 48MHz internal oscillator eliminates an external crystal in most designs, reducing BOM cost. Architecturally, the PIC16LF1454 uses Microchip's enhanced mid-range 8-bit core with a hardware multiplier and vectored interrupts. The integrated USB transceiver follows the USB 2.0 full-speed (12 Mbps) specification, eliminating the need for an external USB PHY. Combined with on-board pull-up switching, the MCU can present itself as a USB device with only a few decoupling capacitors and a USB connector. Typical applications include low-cost USB HID peripherals, USB-to-UART bridges, LED lighting controllers, capacitive touch user interfaces, battery-powered sensor nodes, and consumer electronics such as PC accessories. The XLP nanoWatt technology makes it particularly attractive for always-on USB-powered or coin-cell designs where suspend current must stay under 2.5 mA to remain USB-compliant. When designing with this device, ensure the exposed thermal pad is soldered to a sufficiently large copper pour for heat dissipation; operation near 48MHz at full peripheral load can push dissipation above 50 mW. The 16-QFN package also requires careful PCB escape routing because inner-row pins are not accessible without a via-in-pad or dog-bone fan-out. This page consolidates distributor pricing, drop-in alternatives in the 16-QFN footprint, and practical design notes not found in the manufacturer datasheet.

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PIC16LF1454-E/SL - 8-bit MCU, 14KB Flash, USB 2.0, 14-SOIC | Microchip
PIC16LF1454-E/SL

PIC16LF1454-E/SL - 8-bit MCU, 14KB Flash, USB 2.0, 14-SOIC | Microchip

The Microchip Technology PIC16LF1454-E/SL is an 8-bit PIC microcontroller from the PIC® XLP™ 16F family, featuring an enhanced mid-range core running at up to 48 MHz internal clock, 14 KB (8K x 14 words) of Flash program memory, and a USB 2.0 Full-Speed device module with clock recovery from host - all integrated in a 14-pin SOIC (SL) package. The 'LF' suffix designates the low-voltage variant optimized for battery-powered designs with a VDD range of 1.8 V to 3.6 V. An 8-bit microcontroller (MCU) is a programmable embedded computing device built around an 8-bit data path, on-chip Flash program memory, RAM, peripherals, and I/O pins. PIC microcontrollers use a RISC architecture with a small fixed instruction set, organized within the broader taxonomy: MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16F1xxx family adds enhanced mid-range features including 49 instructions, 16 stack levels, self read/write capability on Flash, and a high-endurance Flash (HEF) cell rated for 100,000 erase/write cycles. Key features of the PIC16LF1454-E/SL include 49 instructions, 16 hardware stack levels, 128 bytes of non-volatile data storage (EEPROM-style HEF), 12 general-purpose I/O pins, an internal 48 MHz oscillator, and a USB 2.0 module with on-chip transceiver and clock recovery. Additional peripherals include multiple timers, a 10-bit ADC with capacitive touch sensing, comparators, MI2C, SPI, and USART. The XLP (eXtreme Low Power) designation delivers active currents in the microamp range and sleep currents below 1 µA typical. The architecture combines a RISC Harvard CPU core with a single-cycle instruction pipeline and hardware multiply assist, enabling deterministic execution at 48 MIPS peak. The integrated USB 2.0 full-speed module is uncommon in this pin count and eliminates the need for an external crystal on USB applications thanks to clock recovery from the host SOF packets. Typical applications include low-cost USB HID peripherals, capacitive touch keypads, sensor nodes with USB diagnostics, portable consumer devices, and battery-powered data loggers. In industrial settings, the part suits low-pin-count human-machine interface panels and bridging dongles. For designers considering a USB-enabled 8-bit MCU with minimal BOM, the PIC16LF1454 is a strong baseline. When designing with this device, place the VDD/VSS decoupling pair within 3 mm of the package pins and route the USB D+/D- traces as a 90 Ω differential pair with matched length, per Microchip's USB design guidelines. This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC16LF1454-E/ST - 8-bit USB MCU 14KB Flash XLP 14-TSSOP
PIC16LF1454-E/ST

PIC16LF1454-E/ST - 8-bit USB MCU 14KB Flash XLP 14-TSSOP

The Microchip Technology PIC16LF1454-E/ST is an 8-bit PIC16F-series microcontroller featuring a 48 MHz enhanced mid-range core, 14 KB (8K x 14) of Flash program memory, and integrated USB 2.0 with clock recovery, housed in a 14-pin TSSOP package. The 'LF' prefix designates the low-power (F) variant operating from a 2.0 V to 3.6 V supply, while the 'E' suffix indicates the -40C to +125C extended industrial temperature grade. The PIC16F1454 family is an enhanced mid-range 8-bit CMOS microcontroller using Microchip's PIC RISC architecture, which delivers 200 ns instruction execution and balances powerful peripherals with a small footprint. Within the broader taxonomy it sits as a microcontroller -> 8-bit MCU -> PIC16 family -> power-managed USB device. PIC microcontrollers are widely recognized as low-power, easy-to-program embedded controllers that simplify USB connectivity in cost-sensitive designs. Key differentiating features include 14 KB Flash with self read/write capability, 128 B of non-volatile data storage (HEF), 512 bytes of SRAM, a 48 MHz internal oscillator eliminating external crystals, a Universal Serial Bus 2.0 module with on-chip clock recovery from the USB host, a Master I2C/SPI module, and XLP (eXtreme Low Power) technology for sleep currents down to the nanoampere range. Twelve I/O pins give designers flexibility for human-interface, sensing, or communication side-channels alongside USB. Typical applications cover USB HID peripherals such as keyboards, mice, and game controllers, USB-to-UART bridges and CDC virtual COM ports, low-power sensor nodes with USB debug, capacitive-touch human-interface devices, and industrial data-loggers that need bus-powered enumeration. The wide 2.0-3.6 V operating range is ideal for Li-ion or 3.3 V regulated rails. When laying out a board, route the USB D+/D- differential pair with 90 ohm impedance and place the optional 27 ohm series resistors close to the MCU. Confirm that the ICSP/ICD pins are accessible for in-circuit programming and debugging. This page consolidates distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.

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PIC16LF1454-I/JQ - 8-bit 48MHz USB MCU 14KB Flash UQFN-16 | Microchip
PIC16LF1454-I/JQ

PIC16LF1454-I/JQ - 8-bit 48MHz USB MCU 14KB Flash UQFN-16 | Microchip

The Microchip PIC16LF1454-I/JQ is an 8-bit PIC microcontroller in the PIC16LF145x family, featuring a 48 MHz enhanced mid-range core, 14 KB Flash program memory (8K x 14), 1 KB RAM, and an integrated USB 2.0 full-speed device controller, housed in a 16-pin UQFN 4x4 mm package with exposed pad. Operating from 1.8 V to 3.6 V, it consumes very low active and sleep currents and is targeted at USB-connected embedded applications where PCB real estate is at a premium. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash, RAM, EEPROM), and peripherals such as timers, ADC, communication interfaces, and I/O. The PIC16LF1454 belongs to the 8-bit PIC family, a RISC architecture with a small, deterministic instruction set (49 instructions, 16 stack levels) widely used in cost-sensitive embedded designs. Within the broader taxonomy, this part is a low-power (LF) USB-capable general-purpose MCU in the mid-range PIC16F1xxx line. Key differentiating features include the integrated USB 2.0 module with clock recovery from the USB host (eliminating an external crystal for USB in many designs), a 48 MHz internal oscillator with 4x PLL for USB operation, 8 general-purpose I/O pins, 128 B of non-volatile data storage, MI2C, and high-endurance flash memory (HEF). XLP (eXtreme Low Power) technology delivers typical sleep currents below 1 uA, while the integrated 10-bit ADC and PWM outputs support sensor and motor-control sub-functions. Architecturally, the device uses a Harvard-style RISC core with a 14-bit instruction word, self read/write capable flash, and a dedicated USB SIE that handles NRZI encoding/decoding, bit stuffing, and resume/reset signaling without CPU intervention. The 4x PLL allows the 48 MHz USB clock to be derived from a low-frequency internal source, reducing BOM cost and simplifying layout. Typical applications include USB HID peripherals (mouse, keyboard, custom input devices), USB-to-UART bridge dongles, low-cost USB sensor interfaces, USB cable identification and charger emulators, USB LED controllers, and consumer accessories that must present as a USB device. The small 4x4 mm UQFN footprint suits space-constrained wearables and dongles. When designing with this MCU, ensure the exposed pad is soldered to a sufficient ground copper pour for thermal dissipation and signal integrity, and follow Microchip AN463 "Layout Checklist for USB Operation" for D+/D- trace impedance. The internal 48 MHz oscillator eliminates one external crystal, but the USB bus-state pull-up resistor on D- still needs external provisioning.

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PIC16LF1454-I/ML - 14KB Flash USB MCU, 16-QFN | Microchip
PIC16LF1454-I/ML

PIC16LF1454-I/ML - 14KB Flash USB MCU, 16-QFN | Microchip

The Microchip Technology PIC16LF1454-I/ML is an 8-bit PIC16F microcontroller in a 16-pin QFN (4x4 mm) package with integrated USB 2.0 full-speed support. It features 14 KB (8K x 14) of self-read/write Flash program memory, 1 KB RAM, a 48 MHz internal oscillator, and operates from 1.8 V to 3.6 V supply, making it ideal for low-power and battery-powered designs. What is a PIC16 microcontroller? PIC16 is a family of 8-bit microcontrollers from Microchip Technology featuring an enhanced mid-range core, RISC architecture, and a peripheral set aimed at low-power, mixed-signal, and connectivity-oriented embedded applications. PIC16 MCUs sit within Microchip's broader hierarchy: PIC10/12/16/18 (8-bit) -> PIC24/dsPIC (16-bit) -> PIC32MX/PIC32MZ (32-bit MIPS). They are widely used in cost-sensitive consumer, USB peripheral, and human-interface-device designs where predictable real-time performance, deep sleep current, and toolchain maturity matter most. The PIC16LF1454 is built around the enhanced mid-range core with 49 instructions and a 16-level hardware stack. It includes a high-endurance Flash (HEF) block, 128 bytes of non-volatile data EEPROM emulation, and a precision 48 MHz internal oscillator that eliminates the need for an external crystal in most designs. Integrated peripherals include a USB 2.0 full-speed module with clock recovery, MI2C/SPI (MSSP), EUSART, two capture/compare/PWM modules, a 10-bit ADC with computation, two comparators, and a reference clock output. The integrated USB 2.0 module with on-chip transceiver and clock-recovery PLL is the defining feature of this part. It supports HID, CDC, vendor-class, and composite USB device stacks using Microchip's free USB framework on MPLAB X IDE. Compared with non-USB PIC16 parts, the LF1454 removes external USB transceivers, crystals, and the BOM cost they incur, while keeping the MCU core inside the familiar PIC16 ecosystem. Typical applications include USB HID peripherals (keyboards, mice, custom input tools), USB-to-UART bridge dongles, low-cost data loggers, environmental sensor pods, IoT edge nodes, and consumer accessories that need bus-powered operation. Designers also use it for general-purpose 8-bit control in compact QFN footprints, motor-preferences, and lighting-preferences that benefit from eXtreme Low Power (XLP) sleep currents measured in tens of nanoamps. When designing with this device, ensure that VUSB is decoupled with 220 nF plus 1 uF as recommended by Microchip, and route the D+/D- traces as a 90-ohm differential pair. If in-circuit serial programming (ICSP) is required, the alternate ICSP pins multiplexed with the USB lines cannot be used simultaneously with USB traffic - plan the pin allocation before layout. This page synthesizes distributor pricing across DigiKey, Mouser, LCSC and Octopart, drop-in package-matched alternatives, and practical design notes - information not aggregated on any single manufacturer or distributor page.

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PIC16LF1454-I/SL - 8-Bit USB MCU, 14KB Flash, 48MHz | Microchip
PIC16LF1454-I/SL

PIC16LF1454-I/SL - 8-Bit USB MCU, 14KB Flash, 48MHz | Microchip

The Microchip Technology PIC16LF1454-I/SL is an 8-bit PIC16F USB microcontroller running up to 48 MHz with 14 KB (8K x 14) of Flash program memory, packaged in a 14-pin SOIC (SL) form factor and characterized for the industrial -40C to +85C range. The "LF" prefix denotes the low-voltage (F) part that operates from 1.8 V to 3.6 V VDD, suiting it directly to coin-cell, Li-ion, and regulated 3.3 V rails. The "I/SL" suffix means industrial temperature grade, 14-pin SOIC with gull-wing leads. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash for program, SRAM for data), and peripherals on one die. The PIC16F family is Microchip's mid-range 8-bit architecture with a RISC instruction set, optimized for deterministic interrupt latency, ultra-low-power sleep modes, and peripheral-rich designs. The PIC16LF1454 sits in Microchip's eXtreme Low Power (XLP) family and uniquely integrates a full-speed USB 2.0 peripheral (with an internal 3.3 V LDO and 48 MHz PLL) at this package size and price point. Key features include 14 KB self-programmable Flash, 512 bytes SRAM, hardware USB 2.0 full-speed with on-chip transceiver, two PWM modules, a 10-bit ADC with up to 9 channels, an analog comparator, and the enhanced mid-range 16-bit instruction set. The internal 48 MHz oscillator eliminates external crystals in many USB designs, and XLP technology delivers nanoWatt sleep currents in the tens of nanoampere range, making the part well-suited to battery-powered or bus-powered devices. Architecturally the device pairs an 8-bit ALU with a 14-bit program word and a 16-level hardware stack. The USB module is clocked from the 48 MHz PLL, and an internal 3.3 V regulator powers the USB transceiver from VDD, so no external LDO is required when VDD is 3.6 V or higher. The CIP (Core Independent Peripherals) set allows ADCs, PWMs, and timers to operate in sleep without CPU intervention, extending battery life. Typical applications include low-cost USB HID peripherals (keyboards, mice, custom HID), USB-to-UART bridges, CDC virtual COM ports, USB sensor dongles, wearable fitness devices, and any size-constrained consumer product that needs USB connectivity on a coin-cell battery. The wide 1.8-3.6 V range supports direct Li-ion cell operation and 3.3 V system buses. Designers should budget for a pull-up on D+ (per USB spec) and place the 0.1 uF VDD decoupling capacitor within 5 mm of the pin. The ICSP pins (RB6/RB7) are multiplexed with USB lines, so an ICSP header should include isolation resistors to allow USB operation during programming. Pin 14 ("??" pin) must be tied to VDD for normal operation per datasheet guidelines. This page synthesizes distributor pricing, drop-in same-package alternatives, and design notes not bundled in the manufacturer datasheet - useful for sourcing, BOM optimization, and second-source selection.

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PIC16LF1454-I/ST - 8-bit 48MHz 14KB Flash USB MCU | Microchip
PIC16LF1454-I/ST

PIC16LF1454-I/ST - 8-bit 48MHz 14KB Flash USB MCU | Microchip

The Microchip Technology PIC16LF1454-I/ST is an 8-bit PIC microcontroller from the PIC® XLP™ 16F family, featuring 14KB (8K x 14) of Flash program memory and operating at up to 48 MHz internal clock speed, housed in a 14-pin TSSOP package. It supports a wide 1.8V to 5.5V supply voltage range with low-power XLP technology, making it suitable for both battery-powered and USB-powered designs. An 8-bit PIC microcontroller is a Harvard-architecture RISC device that executes one instruction per clock cycle (excluding branches), uses separate program and data memory buses, and is widely deployed across consumer, industrial, and automotive embedded designs. The PIC16LF1454 belongs to the enhanced mid-range core family, offering 49 instructions, 16-level hardware stack, and integrated peripherals including a USB 2.0 full-speed module with clock recovery, MI2C, USART, and 12-bit ADC. Key differentiating specifications include 14KB self-read/write Flash with high-endurance Flash (HEF), 1KB RAM, 128B non-volatile data EEPROM, an internal 48 MHz oscillator with USB-friendly PLL, and nanoWatt XLP power management that drops quiescent current below 1 µA in sleep. The integrated USB 2.0 module with on-chip transceiver eliminates the need for external USB PHY components in low-speed and full-speed designs. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, capacitive touch sensing front-ends, wearable sensor nodes, low-power IoT endpoints, and small industrial control boards. The 14-pin footprint keeps BOM cost low while the USB module allows direct bus-powered connectivity. When designing with this part, ensure the internal oscillator accuracy and PLL settings meet USB full-speed timing requirements; an external 48 MHz crystal can be substituted for tighter USB jitter. The TSSOP-14 footprint is friendly to hand-soldering and rework, but the exposed variants (PIC16LF1454-I/ML in QFN) offer better thermal performance for higher duty-cycle USB applications. This page synthesizes distributor pricing, drop-in alternatives within the PIC16LF145x family and pin-compatible variants, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF1454T-I/JQ - 8-bit USB MCU 48MHz 14KB Flash UQFN-16 | Microchip
PIC16LF1454T-I/JQ

PIC16LF1454T-I/JQ - 8-bit USB MCU 48MHz 14KB Flash UQFN-16 | Microchip

The Microchip Technology PIC16LF1454T-I/JQ is an 8-bit PIC16F-series microcontroller built on Microchip's enhanced mid-range core running at up to 48 MHz internal clock speed. It integrates 14 KB Flash program memory, 1 KB SRAM data memory, 128 B of non-volatile data storage, and a USB 2.0 full-speed device module with clock recovery from host, all in a compact 16-pin UQFN (4x4 mm) package. The 'LF' prefix denotes the low-power 'F' variant, optimized for 1.8 V to 3.6 V supply operation, ideal for USB-powered and battery-driven designs. What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral interfaces (ADC, timers, communication buses, I/O). MCUs belong to the broader embedded controller family and sit at the top of the SoC (System-on-Chip) hierarchy used in modern electronics. PIC microcontrollers are 8-bit RISC devices using a Harvard architecture and a compact, deterministic instruction set, widely used in cost-sensitive and low-power embedded systems. The PIC16LF1454 integrates XLP (eXtreme Low Power) technology, supporting sleep currents in the nanoampere range and multiple power-managed operating modes. Key peripherals include a 10-bit ADC with computation, two PWM modules, multiple timers, an enhanced USART, MSSP for I2C/SPI, and 8 general-purpose I/O pins. The integrated USB 2.0 module with on-chip transceiver and clock recovery eliminates the need for an external crystal on many USB designs, reducing BOM cost and board area. The internal 48 MHz oscillator and PLL-derived system clock provide sufficient throughput for USB 2.0 full-speed (12 Mbps) operation while leaving headroom for protocol stacks. The 16-level hardware stack, 49 base instructions, and self-read/write capability of the flash memory support in-application firmware updates via the bootloader-friendly architecture. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, low-power sensor nodes, consumer accessories, and learning/evaluation platforms. The device is suitable wherever compact size, integrated USB, and ultra-low sleep current are simultaneously required. When designing with this part, ensure the USB DP/DM traces are routed as a 90-ohm differential pair and that VUSB is properly decoupled per USB 2.0 specification. For battery applications, leverage the XLP sleep modes and verify the brown-out reset threshold is configured to match the battery cutoff voltage. This page synthesizes distributor pricing, drop-in alternative MPNs, pin-compatible substitutes, and practical design notes compiled from Microchip's datasheet, DigiKey, Mouser, and LCSC listings, beyond what is shown in any single manufacturer page.

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PIC16LF1454T-I/ML - 8-Bit 48MHz MCU 14KB Flash USB QFN-16 | Microchip
PIC16LF1454T-I/ML

PIC16LF1454T-I/ML - 8-Bit 48MHz MCU 14KB Flash USB QFN-16 | Microchip

The Microchip Technology PIC16LF1454T-I/ML is an 8-bit PIC microcontroller in the PIC16LF145x family featuring 14KB (8K x 14) of self-read/write Flash program memory, 48 MHz internal oscillator, and an integrated USB 2.0 Full-Speed module with clock recovery from the USB host, housed in a 16-pin QFN (4x4 mm) package with exposed pad. The 'LF' prefix indicates an extended (XLP) low-power variant supporting operation down to 2.0V with nanoWatt sleep currents, while the 'T' suffix designates tape-and-reel packaging and the 'I' indicates the -40C to +85C industrial temperature grade. A PIC microcontroller (Programmable Interface Controller) is a compact, single-chip computer that integrates a CPU, non-volatile Flash program memory, SRAM data memory, EEPROM, and configurable peripherals into one IC. PIC MCUs sit within the broader hierarchy of microcontrollers -> embedded processors -> semiconductor devices, and the enhanced mid-range 8-bit core in the PIC16LF1454 supports 49 instructions and 16 stack levels while occupying a fraction of the cost and power of 32-bit alternatives. Key features that differentiate this part include 128 B of non-volatile data storage (HEF/High-Endurance Flash), an MI2C/SPI peripheral module, internal 48 MHz oscillator eliminating external crystals, USB 2.0 with on-chip transceiver and clock-recovery, and 12 usable I/O pins. The QFN-16 (4x4) package with exposed thermal pad provides a compact footprint and good thermal dissipation for space-constrained designs. The architecture combines an enhanced mid-range CPU core running up to 48 MHz (with 4 clock cycles per instruction, yielding 12 MIPS) with 1 KB of SRAM, hardware USB SIE, configurable logic cells, and PWM/Signal-Routing peripherals. Program memory with self-read/write capability enables flexible firmware updates, while the high-endurance flash allows EEPROM-like byte-granular data storage without an external EEPROM chip. Typical applications include low-cost USB peripherals (HID, CDC, vendor-class), IoT sensor nodes powered from USB, consumer electronics with USB charging interfaces, and battery-powered embedded controllers. The wide 2.0V-5.5V operating range and low sleep current also suit portable and wearable designs. When designing with this MCU, reserve the exposed pad (EP) for a solid ground connection to maintain thermal and electrical performance, follow Microchip's USB layout guidelines for the D+/D- traces, and consider using the MPLAB Code Configurator (MCC) to generate USB stack code automatically. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not typically aggregated in a single manufacturer datasheet view.

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PIC16LF1454T-I/SL - 8-bit MCU 14KB Flash USB 48MHz SOIC-14 | Microchip
PIC16LF1454T-I/SL

PIC16LF1454T-I/SL - 8-bit MCU 14KB Flash USB 48MHz SOIC-14 | Microchip

The Microchip Technology PIC16LF1454T-I/SL is an 8-bit PIC microcontroller based on the enhanced mid-range PIC16 core, offering 14KB of Flash program memory in a 14-pin SOIC package. It operates from 1.8V to 3.6V, delivers up to 48MHz CPU performance through its 4 PLL multiplier on a 12MHz internal oscillator, and integrates a full-speed USB 2.0 device peripheral. The 'LF' prefix designates the low-voltage variant with extended eXtreme Low Power (XLP) sleep modes for battery-powered designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals into one IC. The PIC16LF1454 belongs to the 8-bit MCU family (PIC > PIC16 > PIC16F/LF14xxx), which occupies the lower tier of the PIC hierarchy below 16-bit dsPIC and 32-bit SAM devices. It is optimized for cost-sensitive and energy-constrained applications requiring USB connectivity without external transceivers. Key differentiating features of this part include: 14KB Flash (8K x 14 words), 1KB RAM, a 48MHz CPU clock derived from the internal 16MHz HFINTOSC, and on-chip USB 2.0 full-speed (12 Mbps) with integrated transceiver and 3.3V regulator. Additional peripherals include Enhanced Universal Synchronous/Asynchronous Receiver Transmitter (EUSART), Master Synchronous Serial Port (MSSP) for SPI and I2C, multiple PWM channels, a 10-bit ADC, and up to 12 programmable I/O pins with interrupt-on-change capability. The XLP technology drives typical WDT sleep current down to 600 nA. Architecturally, this device implements Microchip's enhanced mid-range 16-bit instruction set (49 instructions, 16-bit wide) executed from Flash at a single cycle per instruction (except branches), providing a 48MHz throughput of up to 12 MIPS. The USB module includes a dedicated 3.3V internal regulator that powers the internal USB transceiver from a higher VDD bus, removing the need for an external USB pull-up or transceiver IC. The 14-bit instruction word allows dense code storage: 14KB Flash holds 8K single-word instructions, sufficient for USB class firmware with HID or CDC profiles and full application logic. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridge dongles, low-cost data loggers with USB enumeration, consumer remote controls, sensor hubs exposed over USB, and battery-powered wearables exploiting XLP deep sleep. The part is also used in industrial USB isolator interfaces and educational prototyping boards such as Microchip's Low Pin Count USB Development Kit. When designing with this part, allocate the 14KB Flash across a USB stack (3-5 KB in Microchip's MLA or MCC framework) plus application code, leaving room for bootloader support. Place a 0.1uF ceramic bypass on VDD adjacent to the SOIC pin, and a 10uF bulk capacitor on the USB VBUS pin with proper ESD protection (USBLC6-2 or equivalent) on data lines to meet IEC 61000-4-2 requirements.

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PIC16LF1454T-I/ST - 14KB Flash 8-bit MCU USB 2.0 | Microchip
PIC16LF1454T-I/ST

PIC16LF1454T-I/ST - 14KB Flash 8-bit MCU USB 2.0 | Microchip

The Microchip Technology PIC16LF1454T-I/ST is an 8-bit PIC microcontroller from the PIC16F1454 family, featuring 14KB of Flash program memory, 512 bytes of RAM, and a 48 MHz internal oscillator in a 14-pin TSSOP package. Operating from 1.8V to 3.6V with nanoWatt XLP extreme low-power technology, it targets USB 2.0 full-speed device applications in space-constrained, battery-powered designs. According to Mouser's product summary, it integrates 12 I/O pins, a 10-bit ADC, and a USB 2.0 full-speed transceiver that supports USB device, host, and On-The-Go modes without an external crystal. The 'LF' prefix denotes the low-voltage F-variant, distinguishing it from the 2.0V-5.5V PIC16F1454. A PIC microcontroller (Programmable Interface Controller) is a family of 8-bit RISC microcontrollers from Microchip Technology built on a Harvard architecture with separate program and data buses. Microcontrollers integrate a CPU, non-volatile Flash memory, RAM, EEPROM, and peripherals (ADC, timers, communications, I/O) on a single die. The PIC16F1xxx family adds enhanced peripherals such as USB, capacitive touch sensing, and multiple communication interfaces to the legacy mid-range PIC16 core. Within Microchip's hierarchy, PIC16LF1454 sits in the mid-range 8-bit MCU tier below the PIC18 and dsPIC families, optimized for ultra-low-power and USB-enabled embedded designs. Key differentiating features include the integrated USB 2.0 full-speed transceiver (12 Mbps), which eliminates the need for external USB PHY components, and Microchip's nanoWatt XLP technology, which delivers sub-microamp sleep currents ideal for battery-backed or energy-harvesting applications. The device offers 7-channel 10-bit ADC, two PWM modules, I2C, SPI, and EUSART peripherals, plus an internal 48 MHz oscillator accurate to within +/-2% over the operating range. The 14-pin TSSOP package measures 4.4 mm wide and is rated for -40C to +85C industrial operation. From an architectural standpoint, the PIC16LF1454 uses Microchip's enhanced mid-range core with 49 instructions and a 16-level hardware stack. The integrated 3.3V LDO voltage regulator on the VUSB pin can supply up to 200 mA to external circuitry when USB bus power is present, simplifying USB-powered designs. The device supports in-circuit serial programming (ICSP) via two pins, enabling in-field firmware updates without removing the MCU from the board. Typical applications include USB human-interface devices (HID keyboards, mice, game controllers), USB-to-UART bridge dongles, low-power sensor nodes with USB diagnostics, and consumer peripherals such as programmable LEDs and cable adapters. The combination of USB 2.0, XLP sleep modes, and 14-pin TSSOP footprint also makes it well-suited for medical and industrial accessories where board area is constrained. When designing with this device, note that the USB D+/D- pins are shared with general-purpose I/O, so PCB layout must keep the USB differential pair impedance-controlled (90 ohm differential) and route it as close to the connector as possible. The internal voltage regulator on VUSB requires a 1uF decoupling capacitor; omitting it causes USB enumeration failures on some hosts. Industrial-grade temperature parts (-40C to +85C) carry the 'I' suffix, and tape-and-reel packaging adds the 'T' suffix as in this MPN. This page synthesizes distributor pricing across DigiKey, Mouser, LCSC, and Heisener, drop-in alternatives from the PIC16F1454 family, and practical design notes not found in the manufacturer datasheet summary. Cross-brand drop-in equivalents are limited because the integrated USB 2.0 transceiver in this footprint is unique to Microchip's PIC16F145x series.

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PIC16LF1455-E/JQ - 8-bit MCU 14KB Flash USB 2.0 | Microchip
PIC16LF1455-E/JQ

PIC16LF1455-E/JQ - 8-bit MCU 14KB Flash USB 2.0 | Microchip

The Microchip PIC16LF1455-E/JQ is an 8-bit PIC® XLP™ microcontroller running at up to 48 MHz with 14 KB Flash, 1024 B RAM, an integrated USB 2.0 full-speed transceiver, and a CIP (Core Independent Peripheral) mix, housed in a 16-pin UQFN (4 x 4 mm) package with extended -40 °C to +125 °C temperature range. An 8-bit microcontroller (MCU) is a small, low-power programmable processor that integrates CPU, Flash program memory, SRAM, peripherals, and I/O on a single die. The PIC16F family uses a 14-bit modified Harvard RISC instruction set and sits in the broader hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix designates an extended-voltage variant (2.5 V - 5.5 V) optimized for battery-powered operation, while "XLP" denotes Microchip's eXtreme Low Power platform featuring nanoWatt XLP technology with < 1 µA typical sleep currents. Key features include 14 KB (8 K x 14) self-programmable Flash, 1024 B SRAM, 256 B EEPROM, a 10-bit ADC with up to 9 channels, two PWM modules, an enhanced USART, an MSSP (I2C/SPI) module, and a USB 2.0 full-speed transceiver that supports both HID and CDC classes without an external crystal. The on-chip 3.3 V regulator allows single-supply operation directly from a 5 V rail when the internal regulator is enabled. The architecture pairs a deterministic RISC core with hardware CIPs such as CWG (Complementary Waveform Generator), DSM (Data Signal Modulator), and NCO (Numerically Controlled Oscillator). These offload timing-critical tasks from the CPU, enabling deterministic motor control, lighting, and USB bridging at very low average power, and they remove the firmware overhead that typically limits 8-bit designs. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), CDC virtual COM ports, USB-to-UART bridges, USB Li-Ion battery chargers, small sensor hubs, consumer toys, and low-cost USB dongles. The wide -40 °C to +125 °C range also suits industrial sensor front-ends and automotive cabin accessories. When designing with this device, place the USB D+/D- traces as a 90-ohm differential pair with no stubs, and provide a 10 µF bulk capacitor plus 0.1 µF decoupling within 2 mm of the VDD pin. The ICSP/ICD pins are shared with USB; plan for either programming access or USB D+/D- on the same pads. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF1455-E/ML - 8-bit 48MHz XLP MCU 14KB Flash | Microchip
PIC16LF1455-E/ML

PIC16LF1455-E/ML - 8-bit 48MHz XLP MCU 14KB Flash | Microchip

The Microchip Technology PIC16LF1455-E/ML is an 8-bit PIC microcontroller from the PIC XLP 16F family, featuring a 48MHz CPU core, 14KB (8K x 14) of Flash program memory, 1024 bytes of RAM, and 12 I/O pins, all packaged in a 16-pin QFN (4x4 mm) with an exposed thermal pad. What is an 8-bit microcontroller? An 8-bit MCU is a small computer-on-a-chip built around an 8-bit data path that fetches, decodes, and executes instructions from on-chip Flash memory. In the broader taxonomy, the PIC16LF1455 sits below 16-bit dsPIC and 32-bit ARM Cortex-M devices, but offers lower cost, simpler toolchains (MPLAB X IDE + XC8 compiler), and ultra-low-power operation. The "LF" suffix denotes an extended voltage operating range down to 1.8V, making this part suitable for battery-powered and energy-harvesting designs. Key features include the XLP (eXtreme Low Power) technology with nanoWatt sleep currents typically below 20 nA in sleep mode, integrated full-speed USB 2.0 Device/Host/OTG support, a 10-bit ADC with up to 9 channels, two 8-bit timers and one 16-bit timer, enhanced PWM with up to 4 channels, and a configurable logic cell (CLC) peripheral. The 48MHz internal oscillator eliminates the need for an external crystal in many designs, reducing BOM cost and PCB area. The architecture uses Microchip's enhanced mid-range 16F core with a 14-bit instruction word and a single-cycle hardware multiplier, supporting C and assembly development. The integrated USB 2.0 full-speed transceiver is a distinctive feature: most 8-bit MCUs in this package class require an external USB PHY, but the PIC16LF1455 includes the transceiver on-die, allowing direct USB connectivity at BOM costs approaching non-USB PIC16F parts. Typical applications include USB human-interface devices (HID keyboards, mice, game controllers), USB-to-UART bridges, LED lighting controllers with DMX or USB control, capacitive-touch user interfaces, low-power sensor hubs, and consumer accessories. The 16-QFN 4x4 mm footprint enables compact wearable and IoT form factors. When designing with this part, note that the exposed pad (EP) on the QFN package must be soldered to the PCB ground plane for thermal dissipation and electrical performance. Decoupling capacitors (100 nF + 1 uF) should be placed within 3 mm of the VDD pin, and the USB DP/DM traces require 90 ohm differential impedance matching per USB 2.0 specification. This page synthesizes distributor pricing, drop-in alternatives within the PIC16F145x family, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF1455-E/SL - 8-bit 48MHz MCU, 14KB Flash, USB | Microchip
PIC16LF1455-E/SL

PIC16LF1455-E/SL - 8-bit 48MHz MCU, 14KB Flash, USB | Microchip

The Microchip Technology PIC16LF1455-E/SL is an 8-bit PIC microcontroller from the PIC XLP 16F family, delivering 48 MHz core performance with 14 KB (8K x 14 words) of Flash program memory in a 14-pin SOIC (SL) package. According to distributor listings, the LF variant operates from 1.8 V to 3.6 V, targeting ultra-low-power applications with eXtreme Low Power (XLP) technology, and includes a 1024-byte SRAM data store. The device integrates a full-speed USB 2.0 transceiver with on-chip pull-up resistors and a clock recovery circuit, eliminating the need for an external crystal for USB operation, alongside 12 I/O pins arranged for mixed analog and digital use. A microcontroller (MCU) is a single-chip computer integrating a CPU, program memory (Flash), working memory (RAM), peripherals, and I/O lines. The 8-bit class optimizes for low cost, low power, and deterministic interrupt response over raw compute throughput, sitting in the taxonomy as: microcontroller -> embedded processor -> semiconductor. PIC16F1xxx devices use a 14-bit modified Harvard instruction set and feature the enhanced mid-range core, providing C-compiler-friendly architecture with linear memory access for higher code density than legacy baseline PIC cores. Key features include a 48 MHz internal oscillator with 1% accuracy after USB tuning, a 5-bit DAC and 10-bit ADC with computation, multiple communication peripherals (I2C, SPI, EUSART), and two PWM modules with complementary outputs. The part is offered with 1 KByte SRAM, 256 bytes of EEPROM, and a 32 kHz LP oscillator for RTC mode. The nanoWatt XLP technology enables sleep currents down to sub-microampere levels, making it well-suited for battery-powered USB HID devices, wearable peripherals, and always-on sensor nodes. The architecture uses a two-stage pipeline with hardware multiply support and a peripheral pin select (PPS) system that allows flexible remapping of digital peripherals to physical I/O pins. This reduces PCB layout constraints for compact USB dongles and embedded accessories. CIP (Core Independent Peripherals) such as the CWG, NCO, and PWM modules enable complex timing and waveform synthesis without CPU intervention, further reducing active-mode power. Typical applications include USB Human Interface Devices (HID keyboards, mice, game controllers), USB-to-UART bridges, low-cost logic analyzers, consumer electronics remote controls, and portable medical sensors. The wide operating voltage range also supports coin-cell-powered designs such as wireless key fobs and BLE beacon firmware. The internal USB regulator and transceiver allow direct 5 V VBUS connection with proper external protection. When designing with this part, ensure that the USB DP/DM traces are length-matched within 50 mils and routed over a continuous ground plane for impedance control. A 1 microfarad decoupling capacitor must be placed within 2 mm of VDD, and unused I/O pins must be configured as outputs low to minimize sleep current. Programming is supported via ICSP with the MPLAB X IDE and PICkit 3/4 tools.

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PIC16LF1455-E/ST - 14KB Flash 48MHz USB MCU | Microchip TSSOP-14
PIC16LF1455-E/ST

PIC16LF1455-E/ST - 14KB Flash 48MHz USB MCU | Microchip TSSOP-14

The Microchip Technology PIC16LF1455-E/ST is an 8-bit PIC microcontroller from the PIC16F family with 14 KB of Flash program memory and 1024 bytes of RAM, housed in a 14-pin TSSOP package. It operates up to 48 MHz, supports a wide 1.8V to 5.5V supply range suited for battery-powered designs, and integrates a full-speed USB 2.0 transceiver plus a 5-bit DAC and multiple PWM/timer peripherals. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and configurable peripheral blocks such as timers, ADC, communication interfaces, and GPIO. Within the broader category hierarchy, the PIC16LF1455 sits at: PIC16F family -> 8-bit PIC microcontrollers -> microcontrollers -> microcontrollers (MCU) -> embedded controllers -> semiconductors. The XLP (eXtreme Low Power) designation indicates Microchip's nanoWatt XLP technology family engineered for sleep currents below 1 µA in many modes, enabling years of battery life on coin cells. Key features include 14 KB (8K x 14) self-programmable Flash, 1024 bytes RAM, an integrated USB 2.0 full-speed transceiver, two 10-bit ADC modules with up to 12 analog channels, dual PWM modules, and a configurable 5-bit DAC reference. The 48 MHz internal oscillator eliminates external crystals for many designs, reducing BOM cost and PCB area. The industrial -40 °C to +125 °C operating range supports harsh-environment deployment. Architecturally, the PIC16LF1455 uses a 14-bit modified Harvard RISC core with single-cycle instructions (except branches), executed in two clock cycles through a four-phase pipeline. The integrated USB PHY simplifies USB device development by removing external transceiver components. The CIP (Core Independent Peripheral) set - including CWG, NCO, and CLC - allows hardware-state-machine tasks without CPU intervention, freeing the core for higher-level logic. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), low-power sensor nodes, consumer IR remote controls, capacitive-touch user interfaces via the mTouch peripheral, small home appliances, and battery-powered IoT edge nodes. The wide voltage range and XLP sleep modes make the part particularly attractive for energy-harvesting and wireless-sensor applications. When designing with the PIC16LF1455, ensure the VUSB 3.3V regulator output is correctly bypassed with the recommended 0.47 µF capacitor per the Microchip datasheet; USB signal integrity requires the standard 90 Ω differential D+/D- impedance. For non-USB designs, the RA0/RA1 pins can be repurposed but never as analog inputs while the FVR is enabled in modes that conflict with the DAC reference. This page synthesizes distributor pricing, drop-in alternative MPNs from the same PIC16F 14-pin TSSOP family, and practical USB-related design notes not found on a single distributor listing.

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PIC16LF1455-I/ML - 8-bit MCU, 14KB Flash, USB, 16-QFN | Microchip
PIC16LF1455-I/ML

PIC16LF1455-I/ML - 8-bit MCU, 14KB Flash, USB, 16-QFN | Microchip

The Microchip Technology PIC16LF1455-I/ML is an 8-bit PIC microcontroller featuring 14KB Flash program memory, 1024 bytes of RAM, and a 48 MHz internal oscillator, housed in a 16-pin QFN (4x4 mm) package with exposed thermal pad. It belongs to the PIC16F family and integrates a full-speed USB 2.0 transceiver, making it one of the smallest PIC MCUs with native USB connectivity. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus and a RISC instruction set. The PIC16LF1455 sits within the hierarchy: PIC16F MCU -> 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor device. The "LF" suffix indicates the low-power eXtreme Low Power (XLP) variant designed for battery-powered applications with deep-sleep currents in the microamp range. Key features include 14KB (8K x 14 words) Flash program memory, 1024 bytes SRAM, 256 bytes EEPROM, 12 I/O pins, and integrated USB 2.0 full-speed transceiver with on-chip pull-up resistor. The device supports 1.8V to 3.6V operating voltage, has a 10-bit ADC with up to 9 channels, two 8-bit timers, and two 16-bit timers. The 16-QFN package with exposed pad provides excellent thermal performance and a compact 4x4 mm footprint ideal for space-constrained designs. The PIC16LF1455 uses a 14-bit instruction word RISC architecture with 49 instructions, single-cycle execution except for program branches, and a hardware stack for subroutine handling. The integrated USB module eliminates the need for external transceivers, reducing BOM cost and PCB area. The nanoWatt XLP technology enables sleep currents below 1 uA, extending battery life in USB HID, sensor, and IoT applications. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridge dongles, low-power sensor nodes with USB diagnostic port, capacitive touch interfaces with USB, and USB charging controllers. The combination of USB, low power, and small package makes it well-suited for accessories that require cable connectivity but minimal PCB area. When designing with this device, note that the 16-QFN package requires careful PCB layout with proper thermal pad soldering for reliable operation. The internal 48 MHz oscillator eliminates the need for an external crystal in most USB applications, though a crystal may be required for high-precision timing. The ICSP pins are multiplexed with USB D-/D+ lines, requiring design care during programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing actionable guidance for hardware engineers evaluating the PIC16LF1455-I/ML for embedded USB designs.

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PIC16LF1455-I/P - 14KB Flash 8-bit MCU with USB 2.0 | Microchip
PIC16LF1455-I/P

PIC16LF1455-I/P - 14KB Flash 8-bit MCU with USB 2.0 | Microchip

The Microchip Technology PIC16LF1455-I/P is an 8-bit PIC microcontroller from the PIC® XLP™ 16F family, featuring 14KB (8K x 14) of Flash program memory, 1KB of RAM, and an integrated USB 2.0 full-speed module with clock recovery from USB host. Housed in a 14-pin PDIP through-hole package, it operates at up to 48 MHz from the internal oscillator and supports a wide 1.8V-3.6V supply range optimized for low-power designs. An 8-bit PIC microcontroller is a compact RISC-based processor that integrates Flash program memory, RAM, peripherals (timers, ADC, communication interfaces), and CPU core into a single IC. PIC MCUs sit within the broader taxonomy of microcontrollers -> embedded processors -> semiconductors. The 'LF' prefix indicates the low-voltage / low-power variant designed for battery-operated and energy-harvesting applications, while the 'XLP' branding denotes Microchip's eXtreme Low Power technology platform achieving sub-microamp sleep currents. Key features of the PIC16LF1455-I/P include 49 base instructions with 16 stack levels, 1024 bytes of RAM, 128 bytes of non-volatile EEPROM data storage, a 10-bit ADC with up to 9 channels, two standalone 10-bit PWM modules, and two enhanced USART modules supporting LIN and IrDA. The integrated 48 MHz internal oscillator eliminates the need for external crystals in many USB designs. The device offers up to 12 I/O pins and supports In-Circuit Serial Programming (ICSP) for field updates. Architecturally, the PIC16LF1455 uses an enhanced mid-range core with self read/write Flash capability and High Endurance Flash (HEF) memory cells rated for 100K erase/write cycles typical. The USB 2.0 module includes on-chip transceiver and clock-recovery PLL, allowing direct connection to a USB host without external crystals - a major BOM savings for HID, CDC, and custom USB HID applications. Typical applications include USB Human Interface Devices (keyboards, mice, game controllers), USB-to-UART bridges, portable medical sensors, low-power IoT edge nodes, capacitive-touch user interfaces, and battery-powered consumer electronics. The wide operating voltage range and USB integration make it a strong fit for any design requiring direct USB connectivity without external PHY components. When designing with this part, note that the USB module requires specific PCB layout practices (90-ohm differential impedance on D+/D-, common-mode choke optional) and that the internal oscillator accuracy of ±1% typical is adequate for USB but may not suit designs requiring an asynchronous serial baud-rate reference. The 14-pin PDIP package is well suited for prototyping, hobbyist, and educational use due to its breadboard-friendly through-hole form factor. This page synthesizes distributor pricing, drop-in alternatives in the same 14-pin PDIP package, and practical design notes not consolidated in the manufacturer datasheet, providing information gain beyond the standalone Microchip DS40001639 document.

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PIC16LF1455-I/SL - 8-Bit USB MCU, 14KB Flash, 14-SOIC | Microchip
PIC16LF1455-I/SL

PIC16LF1455-I/SL - 8-Bit USB MCU, 14KB Flash, 14-SOIC | Microchip

The Microchip Technology PIC16LF1455-I/SL is an 8-bit PIC microcontroller from the PIC16F145x enhanced mid-range family, featuring a 48 MHz internal oscillator, 14 KB of Flash program memory, and a full-speed USB 2.0 transceiver with clock recovery. Packaged in a 14-pin SOIC (SL) with industrial -40C to +85C temperature grade, the device combines Microchip's nanoWatt XLP ultra-low-power technology with on-chip USB, eliminating the need for an external crystal on USB applications. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for low cost, deterministic real-time control, and simple peripheral integration. Within the embedded hierarchy, the PIC16LF1455 sits between smaller 6/8-pin baseline PICs and higher-end 16-bit dsPIC/PIC24 devices, and is positioned for USB-equipped consumer, industrial, and human-interface designs where a small package and ultra-low standby power are mandatory. The 'LF' prefix denotes the low-voltage 'F' process variant supporting operation down to 2.3V on the VDD rail. Key features of the PIC16LF1455 include 14 KB self-read/write Flash with high-endurance HEF blocks, 1024 bytes of SRAM, 128 bytes of EEPROM-like non-volatile data storage, an enhanced mid-range core with 49 instructions and a 16-level hardware stack, plus two standalone 10-bit PWM modules, a 10-bit ADC with computation, comparators, and a configurable Logic Cell. Communication peripherals include EUSART, I2C/SPI (MSSP), and a full-speed USB 2.0 device/embedded host/On-The-Go transceiver with internal pull-ups and clock recovery from the USB host - no external crystal required. The architecture uses a RISC-style Harvard pipeline with a 14-bit instruction word and a single-cycle instruction execution of 200 ns at 48 MHz, which simplifies deterministic timing for USB polling. nanoWatt XLP technology provides deep sleep currents in the microamp range, making the part well suited to USB bus-powered or battery-driven designs that spend most of their life in standby. Typical applications include low-cost USB HID peripherals (keyboards, mice, custom HID), USB-to-UART bridge dongles, USB-charging-cable identification ICs, LED lighting controllers with USB DMX/control interfaces, capacitive-touch human-interface devices, and industrial sensor nodes with USB diagnostics ports. Its small 14-SOIC footprint allows it to replace larger 20/28-pin designs where the pin budget is tight. When designing with this device, ensure the VDD rail stays within 2.3V to 5.5V and that the USB DP/DM traces are routed as a 90 ohm differential pair with the D+/D- series resistors per the USB 2.0 specification. The internal 48 MHz oscillator eliminates the need for an external crystal in USB applications, which is the primary BOM-reduction advantage of the 'F1455 family. This page synthesizes distributor pricing, drop-in alternatives, and design notes for the PIC16LF1455-I/SL not found in the standalone manufacturer datasheet.

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PIC16LF1455-I/ST - 14KB Flash 48MHz USB MCU 14-TSSOP | Microchip
PIC16LF1455-I/ST

PIC16LF1455-I/ST - 14KB Flash 48MHz USB MCU 14-TSSOP | Microchip

The Microchip Technology PIC16LF1455-I/ST is an 8-bit PIC microcontroller in the PIC16F1454/5/9 family, built on an enhanced mid-range core with 49 instructions and 16 stack levels, integrating a full-speed USB 2.0 module with clock recovery from host, 14KB Flash program memory, 1024 bytes RAM, and a high-endurance 128-byte EEPROM-like non-volatile data storage area. The device runs up to 48 MHz from an internal oscillator, operates over 2.3V to 5.5V (the F variant 1.8V to 5.5V), and is housed in a 14-pin TSSOP package (industrial -40C to +85C). What is a PIC16F1455? It is a member of Microchip's enhanced mid-range 8-bit PIC16 microcontroller family, which bridges legacy baseline PIC cores and modern XLP (eXtreme Low Power) products. PIC16 microcontrollers use a Harvard RISC architecture optimized for deterministic interrupt latency and ultra-low power consumption; the 'LF' prefix denotes the low-voltage/foundry variant that supports lower Vdd operation, while the integrated USB 2.0 Full-Speed peripheral with on-chip clock recovery eliminates the external 12/24 MHz crystal typically required for USB. Key features that distinguish this part include the integrated USB 2.0 module (rare in this pin-count and price tier), self-read/write Flash with high-endurance HEF (High Endurance Flash) for data EEPROM emulation, 12-bit ADC with computation, multiple communication peripherals (I2C/SPI/EUSART), and the nanoWatt XLP sleep modes that allow battery-powered designs. The 14-pin TSSOP gives designers 12 usable I/O lines while keeping the board footprint compact. Architecturally, the PIC16F1455 uses a 14-bit instruction word, a single-cycle ALU with hardware multiply, and a 49-instruction set; the integrated USB SIE (Serial Interface Engine) handles packet framing and NRZI encoding without CPU intervention. The internal 48 MHz oscillator with 0.25% calibration supports USB Full-Speed operation directly, while a PLL derives the 48 MHz USB clock from lower-frequency sources. Typical applications include low-cost USB HID/CDC devices, USB-to-UART bridges, battery-powered sensor nodes with USB charging/diagnostic interfaces, LED lighting controllers, and consumer peripherals. The combination of USB, ADC, and PWM makes it a frequent choice for human-interface and connectivity products. Design consideration: USB designs must follow USB-IF signal-integrity guidelines - place the 0.1 uF Vbus decoupling capacitor within 2 mm of the VUSB pin and ensure the D+/D- traces are 90 ohm differential with no stubs. The internal 48 MHz oscillator eliminates one external component but does not allow fine-tuning for non-USB timings. This page synthesizes distributor stock levels, drop-in alternatives, and applied design notes that go beyond the manufacturer datasheet.

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PIC16LF1455T-I/JQ - 8-bit MCU 14KB Flash USB 2.0 16-UQFN | Microchip
PIC16LF1455T-I/JQ

PIC16LF1455T-I/JQ - 8-bit MCU 14KB Flash USB 2.0 16-UQFN | Microchip

The Microchip PIC16LF1455T-I/JQ is an 8-bit PIC microcontroller from the PIC® XLP™ 16F family featuring a 48 MHz enhanced mid-range core, 14 KB (8K x 14) of self-read/write Flash program memory and 1024 bytes of SRAM in a compact 16-pin UQFN (4x4 mm) package. The integrated USB 2.0 Full-Speed module with on-chip clock recovery from the USB host eliminates the need for an external crystal in many USB designs, while the 128-byte High Endurance Flash (HEF) section provides 100 kcycle non-volatile data storage. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and peripheral interfaces on one IC. The 8-bit MCU category occupies the low-power, low-cost end of the embedded hierarchy: 8-bit core -> PIC mid-range -> PIC16 family -> XLP ultra-low-power sub-family. The XLP designation denotes extended sleep-mode current performance, typically tens of nA, enabling years of operation from a coin cell. Key features include 49 instructions with 16 hardware stack levels, an internal 48 MHz oscillator, two 8-bit timers plus one 16-bit timer, a 10-bit ADC with up to 9 channels, and 11 capacitive-touch-capable I/O pins. The USB 2.0 module supports HID, CDC and custom classes and integrates the 3.3V internal regulator and pull-up resistors. Master Clear Reset, In-Circuit Serial Programming (ICSP) and an on-chip debug interface (ICD) are standard. Operating voltage spans 2.3V to 5.5V (F version) suitable for both 3.3V USB and 5V-logic systems. The architecture combines a single-cycle hardware multiplier with a 14-bit instruction word and a 16-level hardware stack, allowing deterministic interrupt latency in real-time USB polling loops. The USB engine handles SOF token tracking and resume signalling in hardware, leaving the core free for application code. The XLP nanoWatt XLP technology provides Sleep currents in the sub-100 nA range, with multiple wake-up sources including USB resume, watchdog and RTCC. Typical applications include USB HID peripherals (keyboards, mice, custom joysticks), USB-to-UART bridges using CDC class, low-cost capacitive-touch user interfaces, sensor nodes with USB diagnostic ports, and consumer accessories such as LED controllers or programmable key fobs. Designers should bias the application layer around deterministic interrupt timing and exploit the integrated USB features to avoid external components. Design tip: place the VBUS sense divider and D+/D- series resistors within 5 mm of the MCU, keep the USB DP/DM traces length-matched and impedance-controlled to 90 ohm differential, and add a 1 uF + 100 nF decoupling pair adjacent to the VDD and VUSB pins. This page consolidates verified distributor pricing, parametric drop-in alternatives and practical USB-layout design notes beyond what the manufacturer datasheet alone supplies.

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PIC16LF1455T-I/SL - 14KB Flash 8-bit MCU | Microchip XLP
PIC16LF1455T-I/SL

PIC16LF1455T-I/SL - 14KB Flash 8-bit MCU | Microchip XLP

The Microchip Technology PIC16LF1455T-I/SL is an 8-bit RISC microcontroller from the PIC® XLP™ 16F family, featuring 14KB (8K × 14) of Flash program memory, 1024 bytes of SRAM, and a 48 MHz internal oscillator, all housed in a 14-pin SOIC (SL) package. This tape-and-reel variant of the PIC16LF1455 targets USB-ready embedded designs where low power and small footprint are critical. An 8-bit PIC microcontroller (MCU) is a compact processor built on Harvard architecture with separate program and data buses, optimized for deterministic real-time control. The "LF" prefix denotes the wide-voltage low-power XLP family, which sits within the broader taxonomy of 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The "16F" series uses Flash memory for in-circuit reprogrammability, distinguishing it from older OTP (one-time programmable) PIC devices. Key features include 5 channels of 10-bit ADC, one 5-bit DAC, two PWM modules, two comparators, multiple timers (Timer0/Timer1/Timer2), a watchdog timer, and an integrated USB 2.0 full-speed transceiver with on-chip 3.3V regulator - an unusual feature at this price point. The device operates across 1.8 V to 3.6 V with nanoWatt XLP sleep currents, enabling multi-year battery life in always-on applications. The PIC16LF1455 uses a modified Harvard RISC core with 49 instructions and a 200 ns instruction cycle at 20 MHz (4 clock cycles per instruction). The integrated USB module eliminates external transceivers, and the on-chip voltage regulator provides 3.3 V from VBUS to internal logic, simplifying USB device designs. CIPs (Core Independent Peripherals) such as CWG, NCO, and the 5-bit DAC operate without CPU intervention. Typical applications include USB HID peripherals (keyboards, mice, custom HID), low-cost sensor nodes, battery-powered IoT endpoints, industrial control modules, and consumer electronics requiring USB connectivity. The 14-SOIC package supports hand-soldering and through-hole-style prototypes while remaining surface-mount compatible. When designing with this part, ensure VBUS decoupling uses the recommended 10 µF bulk capacitor plus 100 nF bypass. Program the CONFIG register to enable the on-chip USB regulator when needed, and observe the 3.6 V absolute maximum supply voltage. The "LF" silicon is not 5 V tolerant; use the PIC16F1455 variant for 5 V systems. This page synthesizes distributor pricing, parametric data, and drop-in SOIC-14 alternatives not aggregated elsewhere, with comparison tables and design notes optimized for engineers evaluating 8-bit USB microcontrollers.

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PIC16LF1455T-I/ST - 14KB Flash USB MCU 8-bit 48MHz TSSOP-14
PIC16LF1455T-I/ST

PIC16LF1455T-I/ST - 14KB Flash USB MCU 8-bit 48MHz TSSOP-14

The Microchip Technology PIC16LF1455T-I/ST is an 8-bit PIC microcontroller from the PIC16F1454/1455/1459 family with 14 KB of Flash program memory and integrated USB 2.0 Full-Speed support, housed in a 14-pin TSSOP package. It runs at 48 MHz from an internal oscillator and offers 12 I/O pins plus 1024 bytes of RAM. The 'LF' prefix denotes the low-F variant that operates across 1.8V to 3.6V, making it suitable for battery-powered designs. An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions sequentially from on-chip program memory and interacts with peripherals through digital and analog I/O. Within the broader taxonomy, the PIC16LF1455 belongs to: MCU -> 8-bit MCU -> PIC16 family -> enhanced mid-range core -> Microchip PIC16F1xxx USB sub-family. The enhanced mid-range core delivers 49 instructions, 16 stack levels, and self read/write Flash with high-endurance HEF cells, plus 128 bytes of non-volatile data EEPROM. Key features include a Universal Serial Bus 2.0 module with clock recovery from the USB host, eliminating the need for an external crystal on USB applications. The device integrates a 48 MHz internal oscillator, multiple timer modules, a 10-bit ADC, comparators, PWM, and the CIP (Core Independent Peripherals) that allow hardware-based state machines without CPU intervention. eXtreme Low Power (XLP) technology delivers nanoWatt sleep currents for energy-harvesting and coin-cell designs. The architecture combines a RISC-based 8-bit CPU with USB SIE hardware, allowing full-speed USB device/host/OTG operation through software stacks such as the Microchip USB Framework. The 14 KB Flash supports In-Circuit Serial Programming (ICSP) and self-programming for bootloader-based firmware updates. CIP peripherals reduce firmware complexity and deterministic interrupt latency. Typical applications include USB human-interface devices (HID), USB-to-UART bridges, USB LED drivers, USB battery chargers, consumer USB peripherals, USB barcode scanners, low-power sensor hubs, and USB-based IoT endpoints. The wide operating voltage and low sleep current also suit wearable medical and remote-control products. When designing with this device, ensure that the USB D+/D- traces are 90 ohm differential matched and that VUSB bypass capacitance follows the datasheet recommendations to maintain USB-IF compliance. For non-USB applications, allocate the D+/D- pins as standard GPIO since the USB module can be disabled in firmware.

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